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TRY IT OUT: Using the WSAT to Manage User Accounts and Roles
Step 5When I click Security the followin message appearsThere is a problem with your selected data store. This can be caused by an invalid server name or credentials, or by insufficient permission. It can also be caused by the role manager feature not being enabled. Click the button below to be redirected to a page where you can choose a new data store.

The following message may help in diagnosing the problem: Type is not resolved for member 'System.Data.Entity.Core.ProviderIncompatibleExcep tion,EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'.
Win10,VSE 2013 for WEB,SQL 2012 express.
I would appreciate your help . I have badly stuck at this point!
Teop74